A Segment Protected Parallel Bus is for an uninterruptible power supply to electric consumers, whereby at least two electrical distributed power generation units, are connected electrically parallel, each distributed power generation unit is coupled to at least one electric consumer bus. At least two electrical protection zones for isolating electrical faults and multiple protection zones with instantaneous tripping for the electrical parallel connection of consumer networks are provided in a mutual electrical ring connection. In the ring connection, a first switching element with a switching time of less than 10 ms for the electrical decoupling of the consumer buses from one another starting at a predetermined voltage drop, which is established according to load requirements, is arranged between each protection zone with instantaneous tripping and an adjacent protection zone in the first ring direction with instantaneous tripping and an adjacent protection zone in the second ring direction with instantaneous tripping.
Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A system for an uninterruptible power supply to electric consumers, the system comprising: a ring connection having a plurality a protection zones around the ring connection, each of the protection zones comprising a current limiting coil, a bypass branch, and a switching element, wherein, for each protection zone, the current limiting coil is electrically coupled to the bypass branch by the switching element in a common direction around the ring; a plurality of consumer busses, wherein each of the consumer busses is connected in parallel to a different one of the protection zones of the ring connection by the current limiting coil and the bypass branch of the respective protection zone; and a plurality of electrical distributed power generation units coupled to respective ones of the consumer busses and configured to deliver power to the consumer devices coupled to the respective consumer bus.
An uninterruptible power supply (UPS) system for electrical consumers uses a ring-shaped electrical connection with multiple protection zones. Each zone contains a current-limiting coil, a bypass branch, and a switching element. The current-limiting coil and bypass branch are connected via the switching element in the same direction around the ring. Multiple consumer buses connect in parallel to separate protection zones via the coils and bypasses. Each consumer bus is powered by an electrical power generation unit that provides power to connected consumer devices. This ring configuration allows power to be rerouted if a fault occurs in one of the power generation units or protection zones, ensuring continuous power delivery.
2. The system of claim 1 , wherein each of the bypass branches is coupled to the bypass branch of a neighbor protection zone in the common direction around the ring connection through one of the switching elements that defines the neighboring protection zone.
In the uninterruptible power supply (UPS) system where a ring connection has multiple protection zones (each with a current limiting coil, a bypass branch, and a switching element where for each protection zone, the current limiting coil is electrically coupled to the bypass branch by the switching element in a common direction around the ring; a plurality of consumer busses, where each of the consumer busses is connected in parallel to a different one of the protection zones of the ring connection by the current limiting coil and the bypass branch of the respective protection zone; and a plurality of electrical distributed power generation units are coupled to respective ones of the consumer busses and configured to deliver power to the consumer devices coupled to the respective consumer bus), each bypass branch is connected to the bypass branch of an adjacent protection zone through one of the switching elements that defines the neighboring protection zone, going in the same direction around the ring. This arrangement creates a continuous bypass path around the ring, facilitating power rerouting.
3. The system of claim 2 , wherein for each protection zone the respective bypass branch is coupled to the current limiting coil of a neighbor protection zone in the common direction around the ring connection without one of the switching elements positioned therebetween.
In the uninterruptible power supply (UPS) system where a ring connection has multiple protection zones (each with a current limiting coil, a bypass branch, and a switching element where for each protection zone, the current limiting coil is electrically coupled to the bypass branch by the switching element in a common direction around the ring; a plurality of consumer busses, where each of the consumer busses is connected in parallel to a different one of the protection zones of the ring connection by the current limiting coil and the bypass branch of the respective protection zone; a plurality of electrical distributed power generation units are coupled to respective ones of the consumer busses and configured to deliver power to the consumer devices coupled to the respective consumer bus; and where each of the bypass branches is coupled to the bypass branch of a neighbor protection zone in the common direction around the ring connection through one of the switching elements that defines the neighboring protection zone), for each protection zone, its bypass branch connects directly to the current limiting coil of the adjacent protection zone in the same direction around the ring. No switching element exists between a bypass branch and the neighboring coil; it's a direct electrical connection.
4. The system of claim 1 , wherein in response to a fault in a first electrical power generation unit: the respective switching element coupled to the respective current limiting coil of the first electrical power generation unit is configured to open to isolate the first electrical power generation unit from a second electrical power generation unit in a neighbor protection zone in the common direction around the ring connection, and the respective bypass branch coupled to the respective switching element is configured to couple deliver power to the respective consumer devices of the first electrical power generation with the second electrical power generation unit in the neighbor protection zone in the common direction around the ring connection.
In an uninterruptible power supply (UPS) system using a ring topology, if a power generation unit fails, the switching element associated with the faulty unit's current-limiting coil opens, isolating that unit from a neighboring unit’s protection zone in the same direction around the ring. Simultaneously, the bypass branch connected to that switching element activates, allowing the neighboring power generation unit to supply power to the consumer devices previously powered by the failed unit. This mechanism reroutes power, maintaining uninterrupted service to the consumers. The system uses a ring connection having a plurality a protection zones around the ring connection, each of the protection zones comprising a current limiting coil, a bypass branch, and a switching element, wherein, for each protection zone, the current limiting coil is electrically coupled to the bypass branch by the switching element in a common direction around the ring; a plurality of consumer busses, wherein each of the consumer busses is connected in parallel to a different one of the protection zones of the ring connection by the current limiting coil and the bypass branch of the respective protection zone; and a plurality of electrical distributed power generation units coupled to respective ones of the consumer busses and configured to deliver power to the consumer devices coupled to the respective consumer bus.
5. The system of claim 4 , wherein the fault in the first electrical power generation occurs when one of: a voltage drop in the respective consumer bus coupled to the first electrical power generation unit is greater than a voltage threshold, or a current from the first electrical power generation unit into the ring connection is greater than a current threshold.
In the uninterruptible power supply system where in response to a fault in a first electrical power generation unit (the respective switching element coupled to the respective current limiting coil of the first electrical power generation unit is configured to open to isolate the first electrical power generation unit from a second electrical power generation unit in a neighbor protection zone in the common direction around the ring connection, and the respective bypass branch coupled to the respective switching element is configured to couple deliver power to the respective consumer devices of the first electrical power generation with the second electrical power generation unit in the neighbor protection zone in the common direction around the ring connection), a fault is detected in a power generation unit when either the voltage on its consumer bus drops significantly below a predefined threshold, or the current flowing from the unit into the ring connection exceeds a predefined maximum current. Either of these two conditions triggers the isolation and bypass mechanisms.
6. The system of claim 5 , wherein the voltage threshold comprises 30% greater than a nominal voltage drop based on load requirements, and wherein the current threshold comprises 600% of a nominal current level.
In the uninterruptible power supply (UPS) system where a fault in the first electrical power generation occurs when one of: a voltage drop in the respective consumer bus coupled to the first electrical power generation unit is greater than a voltage threshold, or a current from the first electrical power generation unit into the ring connection is greater than a current threshold, the voltage threshold is defined as a voltage drop 30% greater than the nominal voltage drop expected under normal load. The current threshold is defined as 600% of the nominal current level. These values represent the thresholds for triggering the fault protection mechanisms.
7. The system of claim 1 , wherein the switching element in each of the protection zones is configured to switch to decouple respective consumer busses from the ring connection in less than 10 ms.
In the uninterruptible power supply (UPS) system using a ring topology with protection zones (each with a current limiting coil, a bypass branch, and a switching element where for each protection zone, the current limiting coil is electrically coupled to the bypass branch by the switching element in a common direction around the ring; a plurality of consumer busses, where each of the consumer busses is connected in parallel to a different one of the protection zones of the ring connection by the current limiting coil and the bypass branch of the respective protection zone; and a plurality of electrical distributed power generation units are coupled to respective ones of the consumer busses and configured to deliver power to the consumer devices coupled to the respective consumer bus), the switching element in each protection zone can decouple its consumer bus from the ring connection in less than 10 milliseconds. This rapid switching time ensures minimal disruption to the power supply during fault isolation and bypass activation.
8. The system of claim 1 , wherein respective switching element and bypass branch in respective protection zones are independently controllable.
In the uninterruptible power supply (UPS) system using a ring topology with protection zones (each with a current limiting coil, a bypass branch, and a switching element where for each protection zone, the current limiting coil is electrically coupled to the bypass branch by the switching element in a common direction around the ring; a plurality of consumer busses, where each of the consumer busses is connected in parallel to a different one of the protection zones of the ring connection by the current limiting coil and the bypass branch of the respective protection zone; and a plurality of electrical distributed power generation units are coupled to respective ones of the consumer busses and configured to deliver power to the consumer devices coupled to the respective consumer bus), the switching element and the bypass branch within each protection zone are controlled independently. This allows for flexible power management and fault handling, enabling different responses based on the specific nature of the fault and load conditions.
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October 17, 2016
August 15, 2017
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